With his hair slicked perfectly into place the actor looked smart as he wrapped up for the chilly weather.

New man: Jonah looked a lot slimmer when he dropped 40lbs around the same time last year

In my day: Jonah kept his friend entertained as she listened to his many showbiz tales

His pretty companion wore a leather jacket with slim fit trousers and some very colourful Nike trainers.

She was clearly very entertained by the comic actor's stories as she walked open mouthed as he told his tales.

Jonah has battled with his weight for some time and just last year slimmed down after dropping 40lbs in excess body fat.

No way: The beautiful blonde companion looked in shock listening to Jonah talk

As I was saying: Jonah lost weight in the past by eating sushi and changing his diet

When quizzed last year about his rapidly shrinking frame, he revealed that his love of sushi was the secret to his diet.

He said: 'It was just mostly diet. I wish there was some crazy thing that I did, like a pill or a genie or something.

'But it was, unfortunately, I went to see a nutritionist, and he told me what to eat to change my habits and stuff.

'I found that Japanese food was very helpful to me.'

Days gone by: Jonah was more chubby in 2007 when he starred in Superbad alongside Michael Cera

And in an interview on ABC he also explained the reason he lost weight is the same reason for his new-found focus on dramatic roles - he wants to be seen as an adult.

The 28-year-old, who shot to fame playing comical fat men roles in the likes of Superbad and Get Him to the Greek, is profiting from the decision as he has been nominated for an best supporting actor Oscar.

He said: 'I just had a moment in my life where I said I wanted to become a man. And that means with my career that with my life, that means with my health.'